Whanganui 0.075m Urban Aerial Photos Index Tiles (2017-2018)
LINZ - Land Information New Zealand
Index Tiles ONLY, for actual orthophotos see layer [Whanganui 0.075m Urban Aerial Photos (2017-2018)](http://data.linz.govt.nz/layer/99198)
Orthophotography in the Whanganui District taken in the flying seasons (summer period) 2017-2018.
Imagery was captured for Whanganui District Council by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany,0632, New Zealand.
Data comprises: •764 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1,000 tile layout •Tile layout in NZTM projection containing relevant information.
The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.
Imagery supplied as 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15 m @ 68% confidence level.
Project Aerial photography was captured over the Whanganui urban area in the Whanganui District totalling approximately 175 km2. The area of capture is located in the Manawatu-Whanganui Region of the North Island.
Data Acquisition The aerial photography for this project was captured within the 2017/18 flying season (September 2017 – April 2018) on the following dates: 15 November 2018.
Camera All photography was captured using Vexcel's digital UCE camera and flown at: 0.075 m GSD: 4732 ft (1442 m) flying height Camera Lens: 100 mm Sun Angle Minimum of +45 degrees Flight Planning SN13919 Whanganui Urban: 22 runs, 795 frames Stereo capture: Forward overlap 60%. Side overlap 35%.
Data Processing All aspects of the data processing from imagery processing to DTM creation and ortho production was undertaken in-house by Aerial Surveys staff. Building footprint data was updated by our mapping partner Cyient Ltd. Map Projection All spatial data for this project provided in terms of New Zealand Transverse Mercator 2000 map projection (NZTM2000) . The height datum is NZVD2016.